Wrist-Wearable Devices for Aggregating and Guiding Access to Data from Multiple Different Electronic Messaging Applications via a Quickly-Accessible Communications-Hub Mode, and Methods of Use Thereof

6. The non-transitory, computer-readable storage medium of claim 5, wherein the user-account-configuration UI allows for enabling only a predetermined number of the user accounts on the wrist-wearable device, thereby helping to preserve limited computing and memory resources on the wrist-wearable device.

10. The non-transitory, computer-readable storage medium of claim 9, wherein the fourth and fifth UI elements are displayed with a first visual characteristic, and the sixth UI element is displayed with a second visual appearance that is distinct from the first visual characteristic.

12. The non-transitory, computer-readable storage medium of claim 11, wherein a first of the two calls is an audio call from the same other user and a second of the two calls is a video call from the same other user.

15. The non-transitory, computer-readable storage medium of claim 1, wherein the watch-face UI includes an indication to the user that the aggregated messaging UI is available via a single input.

16. The non-transitory, computer-readable storage medium of claim 1, wherein the aggregated messaging UI includes an indication to the user that the aggregated call log UI is available via a single input.

17. The non-transitory, computer-readable storage medium of claim 1, wherein the wrist-wearable device operates using an operating system, and the first and second applications provide data regarding electronic messages, contacts, and calls to the operating system for use in generating the aggregated messaging, call log, and contact UIs by the operating system.